Weeder-tooth.



y N ITED STATES numana. NELSON. or WLNUr GROVE, MINNESOTA.

'I PMilani"v -orrrcni No.'fusa-mo,-4

l speiac'etion of Let-'ters' Patent. granate@ Dec'. a'areo'q. i

appliquait md .iuiyaaiooa serial Nqfezwa.-

'3 5 rovements in Vl/'eeder-leeth',loifu which the ollowin is 'a s ecication. l

The o ject ci) my invention is to rovide -a weeder-tooth of e'c'ulia'r shape W ich will f loosen the soilv an tear. out the weeds withxo out breaking or injuring the plants.

My invention consists oreneraily in a tooth substantially as `particularly pointed out inthe claims.-

In the -accom anying drawings, forming 15 'part ofthis specificatiomFigure 1 is asideI elevation of a icultivaton'v showing .my unproved weeder-teeth connected thereto. Fig. 2 is a detail view showin a form of tooth employed.` Fig. 3 is a similar view illustrating zo the modification inthe shape of the tooth. Fi 4 illustrates still another modification.

n the drawings, 2 represents a cultivator having the usual plows 3, and 4 is afweder'- frame attached to one 'of .thedrag-bars ofthe 2 5 cultivator and ormingqthe subject-matter of United States a plication for Letters Iatent, Serial No. 295, 20, filed'by me January 8, 1906. In a device of this kind itis desirable to provide some means for reventing the 3o cornstalks from being`injured or broken oi entirely when the teeth of 4the weedingat- .tachment pass over the hill. I therefore provide the frame 4 with a'series of teeth 5, 'sr-cured by bolts 6' at` their upper endsand 35 curved backwardly and downwardly from that point in a semicircular form and having a point or lower end 7, which is turned downwardly at an obtuse langle andi'n a vertical osition with respect to thesoil.k This point 4o 1s only a few inches lon and at its upper Iend the tooth curves bac wardly,y and conseuentl when it is passing throu h or over t e h' l lthe point or lower portion of the tooth will be dig ing into. the soil, while the 45 upper portion will be a considerable distance in the rear of the point and will not contact suiicientlywith t e cornstalks to injure'or break them.

I have found that where an ordinary tooth 5o I is-used that while the point or' lower portion v hand this 19th day oi'July, 1906.

is loosening the soil and tearing out the Weeds that the upper ortion will bear on the leaves and-stalks of t e corn and frequently will bend and break them. Iv have also 55 found that it is impracticable t employ a tooth that is backwardly 'and' downwardly hereinaIter described, and.

Aclods and destroy t 1e weeds witho'ut tearing y. curved and approaches the'soilat .an iacute angle and has a skimming orsc'rapin'geffect'.v l

thereon, as such a tooth willdigi'nto lthe so il f and sometimes tearthe cornplants out b '66", the roorts. B ,turning theointoi the' toot 4 downwardly, owever, so t at it stands in 'a' f -vertical position with respect to the soil, f

have found that it has a dra ging action and 'f will loosen the dirt andy pu ,out the wecds.'A vwithout in anywa injuring the plants. The f tooth may be ma e invarlousiways to produce substantially the same'result..

. In Fig. 3 I have shown a modiied-construcf tion 'which consists in providing a tooth hav-l 7o' f ing aforwardlynclined portion 8 andl a'verl tical point 9, and in' Fig, 4 I have' shown a I tooth having astraight upper portion '10,a1l forwardly-inclined lower portion 1-1, anda backwardi 1 turned point .'12.. The for-f 7 5-' wardly-inclined part 11 will prevent the cornplant from being injured fb. vthe tooth, and y V`the 'downwardly -and bac wardl .turned point will loosen u the-soil land reak the' se the' corn-plants out by the roots or otherwise injuring them. .f

Various forms of teeth V'Inay be prlvided," the essential feature of them being the verti-vv cal or backwardly-inclined point, whichwill loosen the soil wlthout destro g 0r breaking down the plants. This hlrl'in-of tooth,. besides bein particularly adapted fora cui4 tivator wee ing attachment, is also capable of use on a harrow or any approved-style of` weeder.

Iclainifasfmy inventiony 1. A 'cultivatontooth having a forwardl projecting shank` terminating in a bach- `warilly-turned end which 'forms an obtuse 95 angle with the contiguous portion oi the j tooth and stands in a vertical position substantially with respect t0 .the soil. l

2. A weeding attachment for cultivators having a4 series of. spring-'teeth each tooth having-a iorwardl -projeoting shankand a'. backwardly-turne ploint whereby the teeth will drag through t e hill land pull up the -weeds ywithout breaking or injuring the stalks ofthe plant. ,i f

In witness whereof Ihave hereunto set my lrool 

